Seiko Cal. 6315 - 438

The Seiko 6315-438 represents an important milestone in Seiko's 1981 lineup. Powered by the 6315 caliber with 26j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-f4ca22a3c361]

Also known as: Bullhead, Rally

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

35mm

Case Thickness

10.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Silver

Jewels

26j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1981

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